functions in txpath.i - r

    plt, rotext(text,path), x, y  


return TEXT string as is (PATH=0), reversed (PATH=1), reversed and  
with a '\n' between each character, or with '\n' between characters  
(PATH=3).  When plotted, these strings correspond to the original  
meaning of the text path= keyword.  That is, successive characters  
will appear to the right, left, up, or down according to whether  
PATH is 0, 1, 2, or 3  
Interpreted function, defined at i/txpath.i   line 12